Welcome to the Environmental turbulence analysis littera Lab!
The Et al. lab focuses on understanding the role of fluid mechanics in environmental processes. We are particularly interested in turbulent transport between buildings, forest, costal vegetation, and particle/droplet laden flows. We employ and further develop experimental techniques to study turbulent flows in these complex geometries.
Et al. stands for Environmental turbulence analysis littera, which means the study of the effects of turbulence on environmental flows with careful and detailed experimentations and analysis to advance our design capabilities in engineering. The abbreviation et al. means and others and is often used to cite collaborative work in scientific journals. (Fun fact: do you know that the most cited “scientist” on Google Scholar is et al.?) The adoption of this name reflects our philosophy that science is a collaborative endeavor and benefits from different perspectives, viewing angles and inclusion.
Turbulence is the most important unsolved problem of classical physics - Richard Feynman
Experimental Fluid Mechanics, Turbulent Mixing and Transport, Turbulence Theory and Modeling
Fluid Mechanics, Environmental Fluid Mechanics, Multibody Turbulence, Experimental Fluid Dynamics
Production of turbulence in an array of spheres with relative motions– air-water flows.
Mixing and scale interactions in stratified turbulence– improving turbulence models and estimates of oceanic mixing efficiency.
We present a generalisation of the Kármán–Howarth–Monin (K–H–M) equation to include variable-density (VD) effects. The derived equation (i) reduces to the original K–H–M equation when density is a constant and (ii) leads to a VD analogue of the 4/5-law with the same value of constant (=4/5) appearing as the prefactor of the dissipation rate.